Harmful to teeth?
I've been seeing an ad for ages ( https://vm.tiktok.com/ZGJ4CKAWq/ )
When it comes to the fact that you can whiten your teeth with this "serum", someone in the comments confirms that it doesn't naturally get as white as in the video, but it should make them whiter.
My question is, is this harmful to teeth? Because of the ingredients, etc.?
In my opinion, everything that lightens up the teeth is not “healthy” for them. Not to mention the costs that this will entail. Teeth should be allowed to retain their natural color.